Bulbs

any suggestions on what brand bulbs to get, im gonna upgrade my bulb for a 600 watt hps, i can choose from Hortilux ( this is the one i will probably go with) Plantastar or sunmaster, any advice on any of theses brands. im sure there all pretty similar but figured i would ask some of the experts.

hortilux is good.

i use hortilux and there fine.